11 Résouc chaque équation. 3 a. -x = 5 b. 4x - 3 = 11 c. 7 - 8x = 56 4 d. 6x – 4 = 3x + 14 e. .9 – 2x = 11 + 4x Merci d’avance

Bonjour

Résous chaque équation :

a. -x = 5

x = - 5

b. 4x - 3 = 11

4x = 11 + 3

4x = 14

x = 14/4

x = 7/2

c. 7 - 8x = 56

- 8x = 56 - 7

- 8x = 49

x = - 49/8

d. 6x – 4 = 3x + 14

6x - 3x = 14 + 4

3x = 18

x = 18/3

x = 6

e.9 – 2x = 11 + 4x

- 2x - 4x = 11 - 9

- 6x = 2

x = - 2/6

x = - 1/3.